Change in nail color

Introduction The normal color of a person's fingernail is light red and shiny. If the physiological function of the human body is disordered, resulting in disease or malnutrition, trauma, infection, poisoning, application of drugs or changes in environment and life, Can cause the nail to change color.

Cause

1, black armor

The deck becomes black, which can be caused by excessive melanin production in the melanin and nail bed melanocytes. It can be seen in benign pigmented nevus, malignant melanoma, acanthosis nigricans or other diseases caused by Proteus mirabilis infection, ionizing radiation therapy, and heavy metal deposition. A black longitudinal strip is common in chronic eczema, periungual inflammation, radiation dermatitis, and Addison's disease. A brown skin may appear when the bleeding is healed due to trauma. Long-term exposure to coal tar, oral arsenic, and bismorpholine can also cause black nails. Oral chloroquine can cause blue-black pigmentation in the nail bed. A black vertical line can also be found in adult healthy people, especially black races.

2, brown armor (brown nail)

More common in post-inflammatory hyperpigmentation, acanthosis nigricans, Addison's disease, taking antimalarials, mercury poisoning and other metal preparations. Long-term use of bis-morpholine, ethylimine, soaked potassium permanganate solution can also cause.

3, blue armor

More common in sub-hematoma, black suppurative finger inflammation. Can also be seen in taking a flat, black uric acid, hepatolenticular degeneration, hemochromatosis. Patients with silver poisoning have a dark blue-gray color for half a month. A fixed drug eruption caused by phenolphthalein can cause a dark blue change in the nail bed.

4, half of the armor

The proximal side of the nail is white, and the distal half is red, pink or brown. The boundary between the two halves is obvious. More common in patients with kidney disease associated with azotemia.

5, sky blue A half month more common in patients with hepatolenticular degeneration.

6, white armor is divided into 4 types, namely point white armor, linear white armor, part of white armor and all white armor.

1 point white armor: there are varying sizes of white spots on the deck, usually one to several, commonly seen in children aged 8 to 12 years old, also seen in adults, due to trauma, fungal infections, ascariasis, syphilis and Caused by systemic diseases, can also occur in healthy people.

2 linear white armor: horizontal white line or vertical white line on the deck, one or several lines, wide and narrow, mostly due to genetic factors, arsenic poisoning, trauma or hypoalbuminemia.

3 parts of white armor: the deck part turns white, mostly caused by tuberculosis, liver disease, nephritis, frostbite, trauma, Hodgkin's disease, metastasis, leprosy.

4 all white armor: mostly caused by heredity, but also complicated by cirrhosis, leprosy, typhoid, ulcerative colitis, bite, hairworm disease and other diseases.

7, yellow armor

More common in the hyperthyroidism caused by Astragalus and Astragalus. It can also be caused by chronic respiratory diseases such as chronic bronchitis and branch expansion, which are often eaten with carrots and often have lymphedema. Some are caused by heredity. Long-term use of tetracyclines, adipine, topical Leisin, Yulin preparations and other occasional. Also seen in myocardial disease, diabetes, pericardial effusion, malignant tumors, syphilis, pustular psoriasis, erythroderma, periungitis and other diseases.

8, green armor

Fungal infections are more common and can also be seen in the infection of Pseudomonas aeruginosa.

9, gray finger (toe) nail

Deck hyperplasia, thickening or atrophy, brittleness, separation of deck and nail bed, color turbidity and dullness, staining gray, more common in onychomycosis, also in alopecia areata, nail dystrophy, lichen planus, follicular keratosis, Chronic eczema, psoriasis and other skin diseases.

an examination

Related inspection

Detection of trace elements in human body by thumb nail sliding test

May suggest that serious diseases are:

1. White nails - liver diseases, such as hepatitis.

2. Yellow, thick, slow-growing nails - lung disease, such as emphysema.

3. Yellow, red nails at the roots - diabetes.

4. Half white and half pink nails - kidney disease.

5. Red nail bed - heart disease.

6. Pale or white nail bed - anemia.

7. The surface of the nail is sunken or wrinkled - psoriasis or arthritis.

8. "Finger", or nail reversal - lung disease.

9. There is an irregular red line at the root of the nail wrinkle - lupus or related tissue disease.

10. There is a black line under the nail - a malignant skin tumor.

Little Sun - Nail Health Circle.

The little sun is the half moon shape of the nail's roots, called the half moon, also called the health circle. In general, one-fifth of the total nails in a month and a half is the best, too small or too vague or not. People who are too big for a month and a half are prone to high blood pressure and stroke; if they are too small for a half month, the blood pressure is too low. Most people who do not see the half moon armor have symptoms of anemia or neurasthenia.

At the same time, the color of the half moon is best in milky white. Blue, suggesting that there is a problem with the respiratory system, it is prone to cardiovascular disease; blue is a manifestation of poor blood circulation; redness, corresponding to heart failure.

Differential diagnosis

Differential diagnosis of the color change of the nail (toe):

First, nails change fish and color

A person who suffers from chronic diseases, long-term depression, smoking, or chemical exposures such as carbon paper and hair dye can cause discoloration or staining of nails. If the nail is dyed deep, it is better to wait until the new nail grows out. If you want to remove the surface stain in time, you can use a piece of lemon repeatedly to rub the tip of your finger, then wash and dry.

Second, the nails grow strangely

If you lack protein or iron for a long time, it is usually easy to cause a spoon-like or flat nail. It can be corrected by improving diet and nutrition. It is said that wearing artificial nails can help the nails store moisture and soften, causing the nails to bend upwards. For this problem, nutrition should be added as appropriate to remove the artificial nails worn.

If the nail is wavy and dull, it may reveal a lack of protein, lack of vitamins A and B or reveal mineral deficiency. This will improve your daily diet and add multiple vitamins daily. Plus vitamin B6 and 15 grams of zinc can be used. If the nails are all white, it may indicate that the liver may be suffering. At this time, the physician may be asked to check the help.

Fourth, the nails are pale

This may be due to a lack of zinc and vitamin B6 deficiency, or due to anemia. By improving the nutritional status of your diet, the symptoms of pale nails persist, so ask your doctor for advice.

Five, nails appear dents

The manifestation of this disease indicates the lack of calcium, protein and sulfur in the body. These nutrients can be obtained from eggs and garlic, and it is good to eat them regularly.

May suggest that serious diseases are:

1. White nails - liver diseases, such as hepatitis.

2. Yellow, thick, slow-growing nails - lung disease, such as emphysema.

3. Yellow, red nails at the roots - diabetes.

4. Half white and half pink nails - kidney disease.

5. Red nail bed - heart disease.

6. Pale or white nail bed - anemia.

7. The surface of the nail is sunken or wrinkled - psoriasis or arthritis.

8. "Finger", or nail reversal - lung disease.

9. There is an irregular red line at the root of the nail wrinkle - lupus or related tissue disease.

10. There is a black line under the nail - a malignant skin tumor.

Little Sun - Nail Health Circle.

The little sun is the half moon shape of the nail's roots, called the half moon, also called the health circle. In general, one-fifth of the total nails in a month and a half is the best, too small or too vague or not. People who are too big for a month and a half are prone to high blood pressure and stroke. If the A half month is too small, the blood pressure is too low. Most people who do not see the half moon armor have symptoms of anemia or neurasthenia.

At the same time, the color of the half moon is best in milky white. Blue, suggesting that there is a problem with the respiratory system, it is prone to cardiovascular disease; blue is a manifestation of poor blood circulation; redness, corresponding to heart failure.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.